2009 M8 Diamond Drive Bearing Rebuild

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Paul27

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• Feb 9, 2012

• #1

Took photos of the tear-down, machining, and rebuild of my 2009 M8 diamond drive, in the PDF document attached.

Hope this info helps other Arctic Cat owners. Good luck!

Updated PDF attachment 5/12/12.

 

Attachments

• Diamond Drive Tear Down 08.pdf

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Last edited: May 12, 2012

C

CO_MapMaker

Well-known member

• Feb 9, 2012

• #2

Wow what a write up!!

When I did my 6203, my 5203 was still in good shape. My cover went right on, but I like removing the case so you can better inspect and cleanout any debris.

 

Thunder101

Well-known member

Premium Member

• Feb 9, 2012

• #3

Nice write up.

 

Coldfinger

Well-known member

Lifetime Membership

• Feb 9, 2012

• #4

Thanks for the writeup and pics.

 

K

killerrf

Well-known member

• Feb 9, 2012

• #5

actually when i grinded my shaft down i found my transfer gear and planetary gears lined up much better. full contact. otherwise stock it didnt have full contact. needed to go in. i have 1500 miles with my shaft grinded down and everything is mint. this is on a m1.

 

J

jasn179

Free Member

• Feb 12, 2012

• #6

the only thing to add is put bearing in oven at 225 and it will slide right on shaft without having to press it i use this trick alot when i rebuild truck trannys

 

P

Paul27

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Lifetime Membership

• Feb 12, 2012

• #7

Great tip! Thanks!

Found an older thread on the DD issues, with much more information, at the link below. The detailed repair info in that thread starts on page 7, with post #312. Wish I'd found all that before I did my repair. It's very helpful, with a lot of good photos. Good luck!

http://www.snowestonline.com/forum/showthread.php?t=151644&page=7

 

Last edited: Mar 8, 2012

Stack

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Staff member

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Premium Member

• Mar 8, 2012

• #8

Paul27 said:

Took photos of the tear-down, machining, and rebuild of my 2009 M8 diamond drive, in the PDF document attached.

Hope this info helps other Arctic Cat owners.

Good luck!

Click to expand...

I added this to the "Popular Links" section, Thanks Paul!!

Stack

 

4Z

Well-known member

Lifetime Membership

• Mar 8, 2012

• #9

Great job man!!

I put the gears in the freezer overnight and warm up the inner race of the bearing with a butane torch, Doesn't need to be too hot to slide right on. Dirt bike transmissions and crank bearings...

 

zachman33

Active member

Lifetime Membership

• Mar 9, 2012

• #10

Great write-up and pdf file! That helped me out a bunch!

 

D

deanross

Well-known member

Lifetime Membership

• May 7, 2012

• #11

Went to see Doug today.

Just took my shaft to Doug today. I live 80 miles away so he was able to work me in his schedule, so I was able to take it back home with me. Saved me another trip. Good guy. Thanks for the info.

Dean

 

Knox

Active member

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• Nov 7, 2012

• #12

best place to purchase what you need to do the swap.....ive never done it so if possible id like get the part list and numbers thanks

 

P

Paul27

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• Dec 5, 2012

• #13

Knox said:

best place to purchase what you need to do the swap.....ive never done it so if possible id like get the part list and numbers thanks

Click to expand...

See Ebay Item number: 221069126886 (SKF 3203-ATN9-C3). That's all you need. And a good machinist.

Here are other threads that deal with this issue:

http://www.snowandmud.com/forum/f456/diamond-drive-bearing-upgrade-thread-lots-47974.html

http://www.hardcoresledder.com/foru...rive-bearing-failure-repair-write-up-how.html

The Arctic Chat thread was deleted! They FU the machine with poor aluminum tunnel QC at the factory, skip the brake bearing shield (which admits the problem), install the cheapest possible Chinese bearing, refuse to warranty a real fix, claim it never happened, and then hide the truth. Bastards! Other than that, it's a great machine!

 

Last edited: Dec 28, 2012

P

Paul27

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• Aug 29, 2020

• #14

Update: The M8 subject of this post is working fine. No DD maintenance since the work described above, except for two Amsoil changes, roughly 500 miles apart. Oil has been very clean. No sparkles or debris.